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Dongguan Jinchen Precision Mold Co., Ltd. is a manufacturer specializing in high-precision mold parts processing and technology research and development. It has more than ten years of production experience and has solved many supply and technical problems for customers.

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Automotive Connector Molds: Design and Application

In modern automotive manufacturing, connectors play a vital role as they are key components for transmitting power and signals between electronic devices. To produce these precision connectors, specialized molding technology is required. This article will provide a popular science introduction to the design and application of automotive connector molds.

The role of automotive connectors

Automotive connectors are used to connect various circuits and electronic devices inside the car, such as engine control units, sensors, lighting systems, etc. They must be able to work stably in a variety of environmental conditions, including harsh environments such as high temperature, vibration and humidity. Therefore, connectors must be designed and manufactured to meet strict standards and requirements.

Design points of connector mold

Precision: The design of the connector mold must be very precise to ensure that the various components of the connector can accurately fit and meet functional requirements.

Durability: Mold materials must be wear-resistant, high-hardness steel to ensure shape and dimensional stability during a long production process.

Complexity: Connector molds often contain multiple cavities and cores, as well as complex sliders and core pull mechanisms to form the various features and functions of the connector.

Material selection: The choice of mold material has a direct impact on the performance and life of the mold. Commonly chosen materials include pre-hardened steel, nickel-based alloys and stainless steel.

Temperature control: The temperature control of the mold is crucial to the flow and cooling of the plastic, and an effective cooling system needs to be designed to keep the mold working within a suitable temperature range.

Mold manufacturing process

Design stage: Use professional CAD software to design the mold to ensure that all dimensions and features meet the design requirements.

Processing stage: According to the design drawings, CNC machine tools, EDM machines, wire cutting and other equipment are used to precisely process the mold materials.

Assembly stage: Clean, polish and assemble the processed mold parts to ensure that all parts are installed correctly and can move smoothly.

Debugging stage: Install the mold on the injection molding machine, conduct mold testing and debugging to ensure that the mold can stably produce connectors that meet quality requirements.

Production stage: After the mold is debugged, mass production can begin. During the production process, the mold needs to be inspected and maintained regularly to ensure its continued and stable operation.

Application of connector mold

Automotive connector molds are widely used, and almost all automotive electronic systems require connectors. These connectors include but are not limited to:

Power connector: used to connect batteries and electrical systems to transmit power.

Data connector: used to transmit vehicle sensor data and control signals.

Signal connector: used to connect car entertainment systems, navigation systems, etc.

High-speed connector: used for high-speed data transmission, such as automotive Ethernet.

Environmentally Sealed Connectors: Designed to be waterproof and dustproof, suitable for connections outside the vehicle.

The design and manufacturing of automotive connector molds is a highly specialized and precise process, which is directly related to the quality and performance of automotive connectors. With the development of automotive electronics and intelligence, the demand for connectors will continue to grow, and connector mold technology will continue to advance and innovate. By continuously optimizing mold design and production processes, we can ensure the reliability and durability of automotive connectors, providing a solid guarantee for the safety and comfort of cars.


Greetings! I’m Chris, deeply fascinated by mechanical parts and engineering. Let’s embark on a journey through design, functionality, and innovation in the hardware world.

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